| # | Swimmer | Team | Seed | Time | Diff |
| 1 |
Kyser, Landon A (12)
|
FGHAT |
58.20 |
58.95 |
0.75 |
| 2 |
Viada-Coroba, Carlos A (11)
|
FGCM |
1:02.15 |
1:02.93 |
0.78 |
| 3 |
Campoo, Luciano J (12)
|
FGSDST |
1:06.68 |
1:03.19 |
-3.49 |
| 4 |
Colmenares, Javier A (12)
|
FGSOFL |
1:02.36 |
1:05.84 |
3.48 |
| 5 |
Tejada, Oliver A (11)
|
FGMACM |
1:06.23 |
1:08.94 |
2.71 |
| 6 |
Balade, Nahuel A (11)
|
FGCM |
1:12.25 |
1:09.76 |
-2.49 |
| 7 |
Hincapie, Luca (12)
|
FGSOFL |
1:11.31 |
1:09.93 |
-1.38 |
| 8 |
Dominguez, Alfredo H (11)
|
FGBMHG |
1:08.95 |
1:10.07 |
1.12 |
| 9 |
Martin, Giulian A (12)
|
FGCANE |
1:11.98 |
1:10.54 |
-1.44 |
| 10 |
Salas, Carlos M (12)
|
FGHSC |
1:13.60 |
1:11.40 |
-2.20 |
| 11 |
Pineiro, Anthony A (11)
|
FGSDST |
1:11.70 |
1:11.67 |
-0.03 |
| 12 |
Weingard, Luke (12)
|
FGMWA |
1:14.65 |
1:14.83 |
0.18 |
| 13 |
Otero, Ayden A (12)
|
FGMACM |
1:23.31 |
1:15.02 |
-8.29 |
| 14 |
Carbonell, Riley R (11)
|
FGMACM |
1:14.69 |
1:15.51 |
0.82 |
| 15 |
Lopez-Casula, Leonardo (11)
|
FGHSC |
1:13.36 |
1:17.94 |
4.58 |
| 16 |
Cunningham, John W (12)
|
FGSOFL |
1:16.69 |
1:18.27 |
1.58 |
| 17 |
Ekanayake, Marvan M (12)
|
FGSOFL |
1:17.56 |
1:18.76 |
1.20 |
| 18 |
Pelaez, Nicholas (12)
|
FGSOFL |
1:21.67 |
1:22.93 |
1.26 |
| 19 |
Gonzalez, Keven (11)
|
FGMACM |
|
1:27.05 |
- |
| 20 |
Nichols, Alexander (11)
|
FGUN-0 |
1:20.74 |
1:27.50 |
6.76 |
| 21 |
Tampied, Mateo * (11)
|
FGCANE |
|
1:35.06 |
- |
| 22 |
Franchak, Lucas S (11)
|
FGCANE |
1:30.29 |
1:36.41 |
6.12 |
| 23 |
Pereira-Ramallo, Thomas (12)
|
FGSOFL |
|
1:38.54 |
- |
|
Perez-Escobar, Sebastian (11)
|
FGYSF |
|
DQ |
- |